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the users.

setup/teardown mistakes. Phys Nodes that fail to boot should not have their
vnodes setup or torndown; results in pointless errors and email.

It isn't a failure not to have any nodes in your expt when you call vnode setup. Just say so and exit successfully.

setup/teardown, ready/teardown/down. Ug.

does not yet work with remove virtual nodes; that will take even more
work).

Added a new allocstate called RES_TEARDOWN. assign_wrapper no longer
deallocates unused nodes, but rather moves them into the new state for
the wrapper (tbswap) to deal with. Thats cause deleted vnodes need to
be torn down, since its possible that the node on which they were
living will not be deallocated (say, if there are other vnodes on
it). We do not want to be doing that from assign_wrapper, so tbswap
looks for those nodes.

Made vnode_setup allocstate aware in the same way that os_setup is;
do not reboot vnodes or try to set up vnodes when they are already in
the RES_READY state, as they will be when doing a swapmod. In
addition, if os_setup is going to reboot the underlying physnode, move
the vnodes on that node into RES_READY too, since there they will
setup automatically. Might need an interim state here, for correctness.

Remove the sanity check of the experiment state.
Add check for a local node and do not setup/teardown since the reboot
will take care of that (jailed nodes setup at boot time, and obviously
they are going to get torn down when the node goes down!).

nodes, so path is consistent).
Also add jail support by looking to see if the node is a jailed node,
and passing that to the client side in the form of a -j option.

this code from node_reboot, and not modified it properly.

script that checks the database to see if local or remote. The problem
with this is that the ssh syntax makes it hard to determine the host
name by inspection. Would need to parse all the ssh args (bad idea),
ot work backwards and try to figure out the difference between the
command (which is not a string but a sequence of args) and the host
and the preceeding ssh args. Hell with that! Changed sshtb to require
a specific -host argument. Read the args and look for it. Error out of
not found, to catch improper usage.

The moral of this update: "sshtb [ssh args] -host <host> [more args ...]

remote node. Called out of os_setup and tbswapout (-k option to tear
down the vnodes). Invokes the proper script on the remote node, with
the vnodeid (vronXXX) as the key (which is passed along in tmcc to
distinguish vnodes from each other).